Startup and Shutdown Information for Nitric Acid Plant

Shutdown is identified as gauze temperature below 1200 F.

Startup is identified as FI1624 compressor flow >12000 scfm.

Date Time Shutdown Startup Date Time Shutdown Startup

1/8/2006 19:35 X 1/12/2007 11:30 X

1/9/2006 0:00 X 1/13/2007 9:00 X

1/11/2006 2:05 X 1/13/2007 9:05 X

1/11/2006 6:20 X 1/13/2007 9:15 X

1/14/2006 14:55 X 1/13/2007 9:45 X

1/15/2006 7:35 X 1/13/2007 10:55 X

1/27/2006 10:20 X 1/13/2007 11:15 X

1/27/2006 13:40 X 1/13/2007 14:50 X

2/8/2006 5:00 X 1/13/2007 19:10 X

2/8/2006 5:05 X 1/13/2007 19:55 X

2/8/2006 9:10 X 2/15/2007 7:35 X

2/8/2006 13:55 X 2/15/2007 10:50 X

2/13/2006 4:30 X 2/19/2007 5:55 X

2/14/2006 6:35 X 2/21/2007 9:00 X

2/14/2006 17:10 X 3/12/2007 2:30 X

2/15/2006 6:05 X 3/18/2007 12:15 X

3/7/2006 2:05 X 3/20/2007 2:15 X

3/7/2006 2:15 X 3/20/2007 6:05 X

3/14/2006 10:15 X 3/20/2007 9:25 X

3/14/2006 23:35 X 3/20/2007 9:45 X

3/15/2006 10:00 X 3/31/2007 13:40 X

3/15/2006 10:50 X 4/1/2007 1:40 X

3/21/2006 3:55 X 4/1/2007 2:20 X

3/23/2006 22:45 X 4/1/2007 4:15 X

3/25/2006 21:25 X 4/1/2007 7:40 X

3/25/2006 22:35 X 4/8/2007 15:25 X

3/31/2006 22:40 X 4/15/2007 5:30 X

4/1/2006 3:40 X 4/16/2007 23:15 X

4/1/2006 17:20 X 4/17/2007 0:05 X

4/1/2006 17:25 X 4/17/2007 2:40 X

4/2/2006 0:05 X 4/22/2007 13:05 X

4/2/2006 1:25 X 4/22/2007 21:30 X

4/3/2006 10:00 X 4/24/2007 16:15 X

4/3/2006 23:05 X 4/24/2007 20:20 X

5/7/2006 0:50 X 5/3/2007 21:20 X

5/8/2006 3:50 X 5/4/2007 19:45 X

6/11/2006 18:55 X 5/10/2007 8:05 X

6/14/2006 9:35 X 5/10/2007 8:15 X

7/10/2006 9:05 X 5/10/2007 8:45 X

7/10/2006 12:35 X 5/10/2007 12:00 X

7/10/2006 14:50 X 6/11/2007 0:20 X
7/10/2006 15:15

X 6/11/2007 2:05X

7/17/2006 2:50X 6/11/2007 3:30X

8/5/2006 5:50X 6/11/2007 23:30X

8/5/2006 7:05X 6/12/2007 0:00X

8/5/2006 7:15X 6/12/2007 17:30X

8/14/2006 2:50X 6/12/2007 18:30X

8/14/2006 5:50X 6/21/2007 4:00X

8/25/2006 19:45X 6/21/2007 8:50X

8/26/2006 16:10X 6/22/2007 0:25X

8/30/2006 2:10X 7/1/2007 1:35X

8/30/2006 4:45X 7/15/2007 7:55X

9/3/2006 14:20X 7/15/2007 13:50X

9/3/2006 22:00X 7/15/2007 14:15X

9/12/2006 7:55X 7/16/2007 1:25X

9/12/2006 14:40X 7/16/2007 6:25X

9/16/2006 17:55X 7/23/2007 8:10X

9/16/2006 22:55X 7/27/2007 11:25X

9/21/2006 14:55X 7/27/2007 18:20X

9/21/2006 17:25X 7/27/2007 19:40X

9/29/2006 15:30X 8/6/2007 14:05X

9/29/2006 15:40X 8/7/2007 19:20X

######### 12:05X 8/13/2007 0:30X

######### 22:15X 8/13/2007 1:05X

######### 15:30X 8/13/2007 2:35X

######### 2:20X 8/13/2007 16:50X

######### 19:20X 8/25/2007 21:40X

12/3/2006 20:25X 8/26/2007 9:25X

######### 10:10X 8/27/2007 14:25X

######### 16:55X 8/30/2007 21:00X

######### 19:55X 9/6/2007 10:15X

######### 1:00X 9/7/2007 4:30X

######### 7:25X 10/3/2007 13:00X

######### 9:50X 10/3/2007 21:30X

######### 18:45X

######### 5:35X

######### 4:40X

######### 3:45X

######### 18:45X

######### 18:00X

11/1/2007 19:25X

11/3/2007 8:25X

11/3/2007 19:10X

11/3/2007 23:45X

11/5/2007 14:05X

11/5/2007 18:35X

######### 14:50X

######### 22:20X
12/4/2007 12:45

X

12/5/2007 9:15X

######### 14:10X

######### 5:20X

######### 11:30X

######### 13:40X

######### 15:40X
Date Time Shutdown Startup

1/1/2008 0:50 X

1/17/2008 17:40 X

1/18/2008 0:50 X

1/19/2008 23:30 X

1/21/2008 7:25 X

1/29/2008 4:35 X

2/3/2008 16:10 X

2/20/2008 7:50 X

2/25/2008 14:25 X

4/7/2008 12:20 X

4/8/2008 0:20 X

4/15/2008 14:30 X

4/15/2008 15:50 X

4/21/2008 7:55 X

4/21/2008 8:25 X

4/24/2008 1:15 X

4/25/2008 17:05 X

5/5/2008 11:50 X

5/5/2008 17:40 X

5/7/2008 19:05 X

5/14/2008 14:45 X

5/25/2008 23:30 X

5/26/2008 8:10 X

5/27/2008 11:05 X

5/28/2008 19:25 X

5/29/2008 22:45 X

6/5/2008 3:00 X

6/13/2008 2:10 X

6/13/2008 23:30 X

6/19/2008 11:15 X

6/19/2008 14:40 X

6/28/2008 10:20 X

6/29/2008 11:30 X

7/4/2008 11:55 X

7/4/2008 13:30 X

7/15/2008 7:25 X

7/15/2008 14:50 X

7/18/2008 4:00 X

7/18/2008 6:00 X

7/18/2008 20:20 X

7/18/2008 23:40 X
7/25/2008 22:55

X

7/25/2008 23:05X

7/29/2008 23:35X

7/30/2008 23:40X

8/9/2008 21:00X

8/10/2008 7:30X

8/22/2008 7:20X

8/22/2008 14:55X

8/28/2008 2:55X

8/28/2008 3:55X

8/29/2008 10:45X

8/29/2008 18:30X

9/1/2008 16:10X

9/1/2008 21:55X

9/5/2008 4:40X

9/5/2008 13:05X

9/7/2008 1:40X

9/7/2008 16:40X

9/27/2008 2:30X

9/27/2008 15:20X

10/5/2008 4:50X

10/5/2008 14:25X

10/9/2008 5:05X

10/9/2008 8:30X

######### 18:35X

11/3/2008 16:30X

11/4/2008 8:54X

11/4/2008 7:10X

######### 18:25X

######### 22:50X

######### 7:55X

######### 15:20X

######### 7:10X

######### 10:30X

######### 18:55X

######### 2:10X

######### 9:35X

######### 13:10X